It seems you're focusing on the wear - resistant rubber roller wheels for KBA 105, 106, P30, and P40 printing machines. When choosing wear - resistant rubber rollers for these machines, in addition to considering the general factors mentioned earlier, the following aspects are also important:
Material Selection: For KBA printing machines, which are known for high - speed and high - precision printing, polyurethane rubber is a preferred material. It has excellent physical properties, including high tensile strength, good tear - resistance, and outstanding rebound performance. Its wear - resistance is 3 to 5 times that of natural rubber rollers, and it outperforms synthetic rubber rollers such as nitrile - butadiene rubber rollers in terms of compression set, rebound, and wear - resistance. In addition, the surface viscosity of polyurethane rubber is high, which helps to improve the ink transfer and ink - holding performance, ensuring high - quality printing.